Smoke-consuming furnace.



L. YOKSGH.

SMOKE GONSUMING FURNACE.

APPLICATION FILED APR. 9, 1906.

91 2,223 Patented Feb. 9, 1909.

2 SHEETS-SHEET 1.

wi tmaom I awwmto'z L. YOKSCH.

SMOKE GONSUMING FURNACE.

APPLIOATION FILED APR. 9, 1906.

91 2,223, Patented Feb. 9, 1909.

2 SHEETS-SHEET 2.

wi immao Z @%@?%/M v abbomzq 1 UNITED STATES PATENT OFFICE.

LOUIS YOKSOILOF DENVER, COLORADO.

SMOKE OONSUMING FURNACE.

Specification of Letters Patent. Application filed- April 9, 1906.. Serial No. 310,614.

' Patented Feb. 9, .1909.

- To all whom it may concern:

Be it known that I, Louis YoxscH, a citizen of the United States, residing at the city and county of Denver and State of Colorado have invented certain new and useful Improvements in Smoke-Consuming F urnaoes; and I-do declarethefollowing to be .a full, clear, and exact description of the invention, such aswill enable others skilled in 10 the art to 'which it appertains to make and use the same, reference being had to the accompanying drawings, and tothe letters and figures of reference markedthereon, which form a part of this specification.

My invention relatesto improvements in smoke consuming boiler furnaces, my object.

being to obtain complete combustion and thereby do away with the loss of carbon or unconsumed fuel, resulting in the smoke which issues from the stacks of ordinary boiler furnaces.

The invention will now be described in de' tail reference being, made to the accompanying drawing in which is illustrated an embodiment thereof.

In this drawing, Figure l is a section taken through a boiler furnace equipped with my improvements, the boiler and my improvements being shown in elevation. Fig. 2 .is a

fragmentary enlarged view of the construc.-

tion shown in Fig. 1. In this view. afurnace 1s shown in central ,vertical section. Fig. 3 1s a horizontal section taken on theline 3 3 Fig. 2, a portion of the baffle plate being broken away.

The same reference characters indicate the same parts in .all the views. Let the numeral 5 designate the fire box;

' 6 the fuel supply opening; 7 the ash pit; 8

the opening leading to the ash. pit; 9 the bridge wall; 10 the boiler and 12 the rear wall of the furnace. -Between the ash pit and the .fire' box the usual grate bars 13 are placed. I I In the upperforward portion of the fire box is located a baffle plate 14: occupying a position a short distance below the bottom of the boiler.- This baffle plate may be supported in' any suitable manner. Mounted upon the forward extremity of the grate below the baffle plate, is a number of vertically disposed ducts. In the drawing a large central duct A is. shown while smaller ducts B are located on opposite sides of the large central duct. These ducts are open at both e'xtremities. Air from the ash pit passes up through the ducts and is delivered to the fire J heated before it is brought into contact with elements to-producecombustion. However;

by having the air heated when it-comes in; Contact with the fuel elements ln thenpper part. of thefire box, combustion takes lace immediately. -.In this manner I amabe to obtain practically perfect combns'tion thus' doing away with the smoke. i In my improved construction ofufurnaoe the fuel supply is passed-through thaopen:,

ing 6 to the gratein theus'ual manner.;' The 1 airnecessary for combustion" enters pit through the opening 8 in front a passes thence upwardly. through the-agitate and also upwardly through the ducts A and;

B. The air passing through the grate unites with the fuel producing partial combustion and generating a large portion of.uncon-v sumed gases. The air which .passes up I through the ducts A and B being thorou hly heated, is delivered to the upper part 0 the.

fire box and caused to mingl'e-withthe gaseswhich being lighter naturally rise, producing immediatecombustion. The heat resulting iii this combustion within the fire box, passes rearwa-rdly over the bridge wall -un.-

'derneath the boiler and thence to'the rear wall 12where itentersthe fire tubes of the boiler and passes forwardly and thence to the stack 15 through which the products of combustion escape.

.The baffle plate 14 is supported by a num-' 1 her of rods C which passupwardly through the ducts,-the said rods being connected with the walls of the ducts in such a manner as to hold the reds securely in place. The upper;

extremities of the rods are separated from thebafile plate-by spacingsleeves D through which therodsC of the larger duct pass.

These, spacing sleeves D are interposed be-g tween the top of the wall of'the duct and. the said battle plate,1;thus maintaining the latter at-auniform, distance from the top of the duct, allowing a-free escape for the air from the ducts into the fire box." The ducts A and v grate or a portion thereof, the said-plate having an opening registering with the opening of the duct A. In the bottom of the plate II are formed ways or grooves in which a damper or valve E is slidably mounted. This damper or valve is controlled by a stem F which is connected therewith at its inner extremity while its outer extremity is exposed at the side of the furnace (see Fig. whereby the damper may be manipulated from the outside thus'making it practicable to control the volume of air which passes through the duct A, at will.

I'iaving thus described my invention what I claim is:

In asmoke consuming furnace, the combination with a fire box, of a grate, an ash pit, a plate located in the forward portion of the tire box and formed integral with the grate,

an air duct mounted on the said plate, the said plate being provided with an opening aiiording means of communication between the ash pit and the duct, rods fastened to the plate and passing through the duct, a baflle plate supported above the duct by said rods and projecting over the grate, the said rods being provided with suitable means located between the duct and the battl plate to hold the said plate in spaced position relative to the top of the duct so as to allow the air to escape from the duct into the the box, and a damper slidably mounted in the first mentioned plate for the purpose of controlling the admission of air through the opening formed in the said plate, substantially as described In testimony whereof I aflix my signature in presence of two witnesses.

LOUIS YOKSCH. Witnesses:

Dnxx NELSON, Or'ro E. I'IODDIGK. 

